Source: https://manu-tests-all-orgs.docs-staging.pageloop.ai/mcp-tools/custom-objects/other/update-custom-object-by-display-id

# updateCustomObjectByDisplayId

Full update of a custom object instance by display ID.

Updates field values of an existing custom object instance identified by display ID. Prefer `patchCustomObjectByDisplayId` when changing only a subset of fields.

## Parameters

| Name          | Type   | Required | Description                                                              |
| ------------- | ------ | -------- | ------------------------------------------------------------------------ |
| `displayId`   | string | Yes      | Display ID formatted as `PREFIX-NUMBER` (e.g., "VEN-42", "VISA-100").    |
| `form_fields` | object | No       | Partial custom field values keyed by field reference\_key. To rename the |